<template>
  <div>
    <!--面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!--卡片视图区域-->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容"
                    v-model="queryInfo.query"
                    clearable @clear="getGoodsList">
            <el-button slot="append"
                       icon="el-icon-search"
                       @click="getGoodsList"/>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>

     <!-- table 表格区域-->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index" label="#"/>
        <el-table-column label="商品名称" prop="goods_name"/>
        <el-table-column label="商品价格(元)" prop="goods_price" width="95px"/>
        <el-table-column label="商品重量" prop="goods_weight" width="70px"/>
        <el-table-column label="创建时间" prop="add_time" width="140px">
          <template slot-scope="scope">{{scope.row.add_time | dateFormat }}</template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope" >
            <el-button type="primary"
                       icon="el-icon-edit"
                       size="mini"/>
            <el-button type="danger"
                       icon="el-icon-delete"
                       size="mini"
                       @click="removeById(scope.row.goods_id)"/>
          </template>
        </el-table-column>
      </el-table>

      <!--分页区域-->
      <el-pagination @size-change="handleSizeChange"
                     @current-change="handleCurrentChange"
                     :current-page="queryInfo.pagenum"
                     :page-sizes="[5, 10, 15, 20]"
                     :page-size="queryInfo.pagesize"
                     layout="total, sizes, prev, pager, next, jumper"
                     :total="total">
      </el-pagination>
    </el-card>

  </div>
</template>

<script>
import Params from "./Params";

export default {
  name: "List",
  data() {
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      goodsList: [],
      // 总条数
      total: 0
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    // 根据分页获取对应的商品列表
    async getGoodsList() {
      const {data: res} = await this.$http.get
      (`goods`, {params: this.queryInfo})

      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败! ')
      }

      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    async removeById(id) {
      const confirmResult = await this.$confirm('将永久删除该商品, 是否继续? ',
      '提示',
          {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
          }
          ).catch(err => err)

      if (confirmResult !== 'confirm') {
         return this.$message.info('已经取消删除! ')
      }

      const {data: res} = await this.$http.delete(`goods/${id}`)

      if (res.meta.status !== 200) {
        return this.$message.error('删除失败! ')
      }

      this.$message.success('删除成功! ')
      this.getGoodsList()
    },
    goAddPage() {
      this.$router.push('/goods/add')
    }


  }
}
</script>

<style scoped>

</style>